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Throttle Opener

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Lexus SC 430, 2003 Lexus RX 300, 2003 Lexus LX 470, 2003 Lexus LS 430, and 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
THROTTLE OPENER SPECIFICATIONS (1)

Application RPM
ES300 1100-1700
RX300 (2)
(1) Check with throttle opener vacuum hose disconnected and plugged, engine idling and at normal operating temperature.
(2) Specification is not available from manufacturer.